CN103414131B - Terminal box and preparation technology thereof - Google Patents

Terminal box and preparation technology thereof Download PDF

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Publication number
CN103414131B
CN103414131B CN201310385068.1A CN201310385068A CN103414131B CN 103414131 B CN103414131 B CN 103414131B CN 201310385068 A CN201310385068 A CN 201310385068A CN 103414131 B CN103414131 B CN 103414131B
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China
Prior art keywords
straight sections
conduit
terminal box
clamping
box
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Expired - Fee Related
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CN201310385068.1A
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Chinese (zh)
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CN103414131A (en
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李文
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李文
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Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to electrical field, particularly relate to terminal box and preparation technology thereof.This terminal box comprises box body; Position in advance according to conduit on described box body, direction and quantity, punching press through hole.This terminal box also comprises the pipe joint be connected with conduit.The preparation technology of this terminal box comprises in advance according to the position of conduit, direction and quantity, punching press through hole on described box body.This junction box structure is simple, and save material, robustness is good, elegant in appearance.When using this terminal box to connect conduit, do not need scattered procedure of processing and program conventionally, by completing in the production line balance set of patterns of standard, substantially increase production efficiency and qualification rate, and easy to connect, quick, and the good stability connected, improve efficiency of construction.

Description

Terminal box and preparation technology thereof
Technical field
The present invention relates to electrical field, particularly relate to terminal box and preparation technology thereof.
Background technology
In house fitting-up, the electric wire of finishing, when laying, needs through conduit.If when electric wire is longer or needs change laying direction, one wire pipe cannot reach required length, and cannot on the corner bend, then in order to connect many wires pipe, make the extended length of conduit or on the corner change the direction of conduit, the general terminal box that uses connects many wires pipe.
The terminal box used at present, all uses lathe punching press to have two punchings do not washed open completely in each side of terminal box, and punching has three punchings do not washed open completely at base plate place, and namely punching press relic is reserved in punching.When using this terminal box to connect conduit, cleaned out by the punching press relic of punching place, because punching is too much, some punching is idle, does not need to connect conduit, causes existing terminal box to waste a large amount of punching press relics, namely waste material.
Summary of the invention
The object of the present invention is to provide a kind of terminal box and preparation technology thereof, to solve the problem.
A kind of terminal box, comprises box body; Position in advance according to conduit on described box body, direction and quantity, punching press through hole.
The embodiment of the present invention also provides a kind of preparation technology of above-mentioned terminal box, comprises the steps:
In advance according to the position of conduit, direction and quantity, punching press through hole on described box body.
Compared with prior art, the advantage of the embodiment of the present invention is: when using the terminal box of the embodiment of the present invention to connect conduit, due to the position of the through hole that is connected with conduit, direction and quantity be position according to conduit, direction and quantity is stamped to form in advance, through hole then in terminal box can be utilized fully, can not be idle, thus the through hole avoiding punching press too much and cause the waste of material.Namely this terminal box saves material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the terminal box of the embodiment of the present invention;
Fig. 2 is state diagram when clamping of the pipe joint of the embodiment of the present invention and conduit;
Fig. 3 is the end view drawing of the pipe joint of the embodiment of the present invention;
Fig. 4 is the box body schematic diagram of the terminal box of the embodiment of the present invention;
Fig. 5 is the schematic diagram that the box body of the embodiment of the present invention is connected with multiple pipe joint;
Fig. 6 is the step of preparation process figure of the terminal box of the embodiment of the present invention.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment 1
A terminal box as shown in Figure 1, Figure 2, Figure 3 and Figure 4, comprises box body 107; Position in advance according to conduit on described box body 107, direction and quantity, punching press through hole 109.
When using the terminal box of the embodiment of the present invention to connect conduit 101, due to the position of the through hole 109 that is connected with conduit 101, direction and quantity be position according to conduit 101, direction and quantity is stamped to form in advance, through hole 109 then in terminal box can be utilized fully, can not be idle, thus the through hole avoiding punching press too much and cause material resources as the waste of manpower, machinery, electric power energy, namely this terminal box saves material resources.
This terminal box also comprises pipe joint, and described pipe joint comprises snap ring 105, straight sections 104 and is positioned at the clamping part of one end of described straight sections 104; Described clamping part comprises multiple holding piece 103, is clamped by described conduit 101 when being inserted in described straight sections 104 for conduit 101; Holding piece 103 described in each is along the radial outward expansion of described straight sections 104; Described snap ring 105 is enclosed within outside described straight sections 104, when described conduit 101 is clamped by clamping part, toggle it to described clamping part.The other end of described straight sections welds with the through hole 109 of described box body 107.
When using the terminal box of the embodiment of the present invention to connect conduit, conduit 101 is inserted in straight sections 104, then at use clamping tool, the central axis of holding piece to straight sections 104 is clamped, because each holding piece 103 is along the radial outward expansion of described straight sections 104, namely holding piece 103 forms kink 201 with the junction of straight sections 104, when then using clamping tool to be clamped by holding piece 103, this kink 201 pairs of conduits apply very large clamping force.Then snap ring 105 is toggled it on clamping part, then unclamps clamping tool, then snap ring 105 tightly be enclosed within outside holding piece 103, holding piece 103 still keeps clamp position, makes clamping part and conduit 101 remain clamped condition.Namely this terminal box and conduit are connected firmly, and not easily loosen.When wherein snap ring 105 is enclosed within outside holding piece, kink 201 can play position-limiting action to snap ring, avoids snap ring 105 to return and causes the clamping force of holding piece 103 to decline.
In order to improve the air-tightness that this terminal box is connected with conduit, this terminal box also comprises waterproof apron 102; It is outer and clamped by described clamping part that described waterproof apron 102 is enclosed within conduit 101.Wherein the internal diameter of this waterproof apron 102 is slightly larger than the external diameter of conduit 101, and the concrete matching relationship between this waterproof apron 102 and conduit 101 is matched in clearance, so that waterproof apron 102 is enclosed within outside conduit 101.First this waterproof apron 102 is enclosed within outside conduit 101, then the conduit 101 of waterproof apron 102 is had to be inserted in straight sections 104 in cover, clamping part is coordinated with waterproof apron 102, improves the air-tightness that this terminal box is connected with conduit, reach the effect of the anti-slurry of waterproof.Use compared with pipe joint seals with the connecting portion of conduit by heat-shrinkable T bush or adhesive tape with existing pipe joint, the terminal box of the embodiment of the present invention, without the need to buying heat-shrinkable T bush, saves the recruitment of material and pyrocondensation process, more safe and reliable, be not afraid of and trample, construct more convenient.And without the need to buying adhesive tape, the recruitment in energy-conservation winding adhesive tape process, can not produce building waste, fail safe is good, the anti-slurry better effects if of waterproof.
In order to improve the stability that this terminal box and conduit are electrically connected, this terminal box also comprises multiple U-shaped metal clip 108.Multiple U-shaped metal clip 108 along waterproof apron 102 circumference arrangement and multiple U-shaped metal clip 108 waterproof apron 102 is clamped.
Preferably, described waterproof apron 102 is taper; One end external diameter of described waterproof apron 102 is greater than the internal diameter of described straight sections 104, and other end external diameter is less than the internal diameter of described straight sections 104; One end that external diameter is little is inserted in described straight sections 104, and one end that external diameter is large is clamped by described clamping part.Particularly, in the waterproof apron of taper, one end external diameter is large, and one end external diameter is little and internal diameter is consistent.One end that external diameter is little is inserted in described straight sections, and one end that external diameter is large is clamped by described clamping part outside straight sections.On the one hand, the taper of waterproof apron is conducive to being inserted in straight sections when being enclosed within outside conduit, and on the other hand, the waterproof apron of this taper improves the frictional force of clamping part and conduit outer wall, makes the connection of clamping part and conduit more firm, more stable.
Because coordinating between waterproof apron with conduit is matched in clearance, namely the internal diameter of waterproof apron 102 is greater than the external diameter of conduit 101, then during clamping part clamping waterproof apron 102, waterproof apron 102 can extrude, produce gauffer, gauffer in order to avoid generation affects the air-tightness that this terminal box is connected with conduit 101, during multiple described holding piece 103 grip wire pipe 101, forms the gap 301 that a width is 2-10mm between two holding pieces of arbitrary neighborhood.Namely the gauffer produced is extruded in this gap 301, makes the mating surface of holding piece, waterproof apron and conduit be smooth arc surface, does not have fold, can not affect the air-tightness that this terminal box is connected with conduit due to the gauffer produced.Wherein, the size in this gap can according to circumstances be determined, such as, can be the arbitrary value between 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 2-10mm.Certainly, the arbitrary value that can also think for 2-10mm of the size in this gap.
In addition, holding piece described in each along the radial outward expansion of described straight sections, particularly, through arbitrary plane formation first crossing with the straight sections intersection of the central axis of described straight sections, formation second intersection crossing with clamping part; The first intersection be connected and the angle of the second intersection are 0-45 °.Namely in order to improve the clamping force between holding piece and conduit, each holding piece clamping before all need with the outer wall shape of conduit in an angle, make holding piece clamp time, the clamping force between clamping part and conduit is larger.Preferably, this angle can be any number of degrees between 10 °, 15 °, 20 °, 25 °, 30 ° or 0-45 °.In addition, the quantity of holding piece is preferably 4, can also be 3,2 or 5 and other any sheet number certainly.
When conduit is inserted in straight sections, in order to avoid conduit inserted dark or excessively shallow, the other end of described straight sections is provided with the groove 106 of die mould formation; Described groove 106 coordinates with described through hole and welds together.Namely conduit 101 is inserted in straight sections 104, external diameter due to conduit is greater than the internal diameter of groove, then the end of conduit 101 will be subject to the restriction of this groove 106, avoids conduit 101 to insert dark or excessively shallow, make conduit 101 more firm with the connection of this terminal box, more reliably.In addition, the internal diameter of this groove 106 can be consistent with the internal diameter of conduit 101, and when this terminal box is connected with conduit, between conduit 101 and groove 106, transition is mild, is convenient to the use of later stage threading.In addition, the end of this straight sections is deep into 0-2mm in box body, can improve the stability of welding.
As shown in Figure 5, the through hole due to this terminal box is formed according to the position of conduit, direction and quantity punching press in advance, then the quantity of pipe joint and the quantity of through hole should be consistent, and pipe joint welds one by one with through hole.
In addition, this terminal box can also be used for wiring casing, and the laying for circuit provides convenient.
Embodiment 2
As shown in Figure 6, the embodiment of the present invention also provides the preparation technology of the terminal box in a kind of above-described embodiment, specifically comprises the steps:
601, in advance according to the position of conduit, direction and quantity, punching press through hole on described box body.
Further, the preparation technology of this terminal box also comprises the steps:
602, cut constant depth from one end of straight sections along the central axial direction of straight sections, form multiple holding piece.Wherein the quantity of holding piece can be 2-15.Be preferably 3,4 or 6.
603, at the connecting portion die mould of straight sections and multiple holding piece, form abducent clamping part; Its medium-pressure type can use lathe die mould.
604, snap ring is enclosed within outside straight sections.
605, the other end of straight sections is welded with described through hole.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. terminal box, is characterized in that, comprises box body;
Position in advance according to conduit on described box body, direction and quantity, punching press through hole; Also comprise pipe joint;
Described pipe joint comprises snap ring, straight sections and is positioned at the clamping part of one end of described straight sections; Described clamping part comprises multiple holding piece, is clamped by described conduit when being inserted in described straight sections for conduit; Holding piece described in each is along the radial outward expansion of described straight sections; Described snap ring is enclosed within outside described straight sections, when described conduit is clamped by clamping part, toggle it to described clamping part; The other end of described straight sections welds with the through hole of described box body;
Described pipe joint also comprises waterproof apron and multiple U-shaped metal clip;
It is outer and clamped by described clamping part that described waterproof apron is enclosed within conduit;
Multiple described U-shaped metal clip along described waterproof apron circumference arrangement and multiple described U-shaped metal clip waterproof apron is clamped;
Described waterproof apron is taper;
One end external diameter of described waterproof apron is greater than the internal diameter of described straight sections, and other end external diameter is less than the internal diameter of described straight sections; One end that external diameter is little is inserted in described straight sections, and one end that external diameter is large is clamped by described clamping part.
2. terminal box as claimed in claim 1, is characterized in that, form the gap that width is 2-10mm between two holding pieces of arbitrary neighborhood.
3. terminal box as claimed in claim 2, is characterized in that, through arbitrary plane formation first crossing with the straight sections intersection of the central axis of described straight sections, and formation second intersection crossing with clamping part;
The first intersection be connected and the angle of the second intersection are 0-45 °.
4. terminal box as claimed in claim 3, is characterized in that, the other end of described straight sections is provided with the groove of die mould formation;
Described groove coordinates with described through hole and welds together.
5. the terminal box according to any one of claim 1-4, is characterized in that, the quantity of described pipe joint is consistent with the quantity of through hole;
Described pipe joint welds one by one with described through hole.
6. a preparation technology for the terminal box according to any one of claim 1-5, is characterized in that, comprises the steps: in advance according to the position of conduit, direction and quantity, punching press through hole on box body; Also comprise the steps:
Cut constant depth from one end of straight sections along the central axial direction of straight sections, form multiple holding piece;
At the connecting portion die mould of straight sections and multiple holding piece, form abducent clamping part;
Snap ring is enclosed within outside straight sections;
The other end of straight sections is welded with described through hole.
CN201310385068.1A 2013-08-29 2013-08-29 Terminal box and preparation technology thereof Expired - Fee Related CN103414131B (en)

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CN201310385068.1A CN103414131B (en) 2013-08-29 2013-08-29 Terminal box and preparation technology thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310385068.1A CN103414131B (en) 2013-08-29 2013-08-29 Terminal box and preparation technology thereof

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CN103414131A CN103414131A (en) 2013-11-27
CN103414131B true CN103414131B (en) 2016-04-06

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019075448A1 (en) * 2017-10-13 2019-04-18 Hubbell Incorporated Electrical box cable connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2444326Y (en) * 2000-09-14 2001-08-22 杨聚泰 Riveting type electrical connector
CN201821062U (en) * 2010-06-30 2011-05-04 健和兴端子股份有限公司 Waterproof junction box and waterproof connector composition inside waterproof junction box

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228075A (en) * 2001-01-30 2002-08-14 Noboru Kikuchi Pipe joint
US7723623B2 (en) * 2004-09-13 2010-05-25 Bridgeport Fittings, Inc. Electrical duplex connector having an integrally formed connector body with a frustro-conical retaining ring and unidirectional cable retainers
KR20090116521A (en) * 2008-05-07 2009-11-11 허인구 Cable grand with all one all the member line box

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2444326Y (en) * 2000-09-14 2001-08-22 杨聚泰 Riveting type electrical connector
CN201821062U (en) * 2010-06-30 2011-05-04 健和兴端子股份有限公司 Waterproof junction box and waterproof connector composition inside waterproof junction box

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Granted publication date: 20160406

Termination date: 20170829